Home / 136,731.27-188,689.20-75,477.50

Finding the Fourth Proportional to 136,731.27, 188,689.20 and 75,477.50

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Solution

The fourth proportional to 136,731.27, 188,689.20 and 75,477.50 is: 104,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,731.27 : 188,689.20 = 75,477.50 : x
  2. Step 2: Convert to fraction form
    136,731.27/188,689.20 = 75,477.50/x
  3. Step 3: Cross multiply
    136,731.27x = 188,689.20 × 75,477.50
  4. Step 4: Simplify right side
    136,731.27x = 14,241,789,635.47
  5. Step 5: Solve for x
    x = 14,241,789,635.47/136,731.27
  6. Step 6: Final answer
    x = 104,158.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.